((13*86)/450):0,26+((57*14)/27)-10/9
13*86/450=13*43/225=559/225=2 109/225 559/225:26/100=559/225*50/13=43*2/9*1=86/9=9 5/9 57*14/27=19*14/9=266/9=29 5/9 9 5/9+29 5/9-1 1/9=9 5/9+28 4/9=38